• Custom-Designed for SHOEI RF-1400: The SRL-EXT was specifically engineered for the SHOEI RF-1400 full-face helmet, with the main module and external battery curved to match the helmet's exterior profile.
• Mesh Intercom and Bluetooth Intercom: Offers both Sena Mesh Intercom (up to 8 km / 5 miles, near-limitless users in Open Mesh) and 4-way Bluetooth intercom in a single system.
• Sound by Harman Kardon: Premium speakers and microphone co-engineered with Harman Kardon audio experts for crystal-clear communication and exceptional music quality inside your SHOEI RF-1400.
• Voice Command and Smartphone Integration: Hands-free voice commands control system functions; connect to Google Assistant or Apple Siri for navigation, calls, and music on the go.
• Dual Boom/Wired Microphone: Includes both a wired boom microphone (for modular and open-face helmets) and a wired flat microphone (for full-face helmets) for flexible installation.
• Sena Motorcycles App Compatible: Customize EQ settings, configure Mesh channels, manage preferences through the Sena Motorcycles App on iOS and Android.

SHOEI RF-1400 owners have been waiting for a communication system worthy of their helmet — and the Sena SRL-EXT was purpose-built to deliver exactly that. Designed by Sena and SHOEI jointly, the SRL-EXT's main module and external battery are shaped to follow the RF-1400's exterior curves for a seamless, helmet-specific fit that universal clip-on systems simply cannot replicate. Under the hood, you get Sena's full Mesh Intercom platform — up to 5 miles of range, near-limitless users in Open Mesh, and private Group Mesh for your crew — alongside traditional 4-way Bluetooth intercom for connecting with any Sena-compatible device. Sound by Harman Kardon means the audio quality inside your RF-1400 is genuinely exceptional, and voice command support for Google Assistant and Siri keeps your hands on the bars. At The Helmet Shop, the SRL-EXT is the definitive communication system for SHOEI RF-1400 riders. Backed by Sena's warranty.

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